Pratt & Miller Engineering and Fabrication is a company formed by Gary Pratt and Jim Miller in 1989.

Based in New Hudson, Michigan, they have been one of General Motors official racing teams since 1999 when they were key in the development of the Chevrolet Corvette C5-R. Today, Pratt & Miller constructs, maintains, and runs the WeatherTech SportsCar Championship Corvette Racing team with Chevrolet Corvette C7.Rs as well as the Pirelli World Challenge Team Cadillac ATS-Vs. The company also built the Pontiac GTO.Rs and Pontiac GXP.Rs, and later the Chevrolet Camaro GT/GS.R for various teams in the Rolex Sports Car Series. The company built and ran the Chevrolet Corvette C6.R in the American Le Mans Series as well.

Since their alliance with General Motors, Pratt & Miller have won numerous championships and famous racing events. Corvette Racing has won their class at the 24 Hours of Le Mans eight times, claimed the overall victory at the Rolex 24 at Daytona in 2001, and won seven straight American Le Mans Series championships. Team Cadillac won the 2005 Speed World Challenge in the team's debut season, while The Racer's Group, running Pratt & Miller-built Pontiac GTO.Rs, won the Rolex Sports Car Series championship in 2006. GM Racing's Katech-built LS7.R small-block engine was also named the 2006 Global Motorsport Engine of the Year. Katech built the C5-R and LS7.R engines that powered the C5-R and C6.R Corvettes in the GTS/GT1 classes of ALMS and the 24 Hours of Le Mans. After Le Mans 2009, Corvette Racing switched to the GT2 class and decided to bring the engine builds in-house. Corvette Racing won the 2012 and 2013 American Le Mans Series GT Team's and Manufacturer's Championships.

Pratt & Miller developed a road-going tuned version of the Chevrolet Corvette C6 named C6RS. The C6RS was powered by a 500 cubic inch LS-based engine developed and built by Katech Inc.

One of the company's first products was the Intrepid RM-1 GTP car, built in 1991.

U.S. Navy photo by Todd ReevesMay 9, 2003Gaeta, Italy -- Corvette Racing team member and reigning GTS Drivers' Champion Ron Fellows hands an autographed t-shirt to a Sailor assigned to the Sixth Fleet flagship USS La Salle (AGF 3), while other drivers sign autographs behind him. The drivers visited LaSalle to thank the Sailors for their service during the recent war with Iraq.
View photo of Corvette Racing's Ron Fellows - 1,125KB

U.S. Navy photo by Todd ReevesMay 9, 2003Gaeta, Italy -- Reigning GTS Drivers' Champion Ron Fellows receives an American flag from the acting Command Master Chief aboard the U.S. Sixth Fleet flagship USS La Salle (AGF 3) during a visit to the ship by Corvette racing team members. The flag was flown over the ship, and will be carried inside one of the Corvettes in the upcoming Le Mans race. &nbspThe drivers spent several hours on the ship's mess decks, signing autographs and talking to Sailors.
View photo of Corvette Racing's Ron Fellows - 999KB